US3595537A - Apparatus for sewage treatment - Google Patents

Apparatus for sewage treatment Download PDF

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Publication number
US3595537A
US3595537A US3595537DA US3595537A US 3595537 A US3595537 A US 3595537A US 3595537D A US3595537D A US 3595537DA US 3595537 A US3595537 A US 3595537A
Authority
US
United States
Prior art keywords
tank
platform
liquid
guide tube
supporting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
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English (en)
Inventor
Joseph Richard Kaelin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Linde GmbH
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CH1699867A external-priority patent/CH466161A/de
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3595537A publication Critical patent/US3595537A/en
Assigned to LINDE AKTIENGESELLSCHAFT reassignment LINDE AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: UNION CARBIDE CORPORATION
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/14—Activated sludge processes using surface aeration
    • C02F3/16—Activated sludge processes using surface aeration the aerator having a vertical axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/234—Surface aerating
    • B01F23/2342—Surface aerating with stirrers near to the liquid surface, e.g. partially immersed, for spraying the liquid in the gas or for sucking gas into the liquid, e.g. using stirrers rotating around a horizontal axis or using centrifugal force
    • B01F23/23421—Surface aerating with stirrers near to the liquid surface, e.g. partially immersed, for spraying the liquid in the gas or for sucking gas into the liquid, e.g. using stirrers rotating around a horizontal axis or using centrifugal force the stirrers rotating about a vertical axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/503—Floating mixing devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Definitions

  • a sewage treatment system comprises a tank 1 6998/67 containing sewage to be aerated and circulated by an aeration rotor partially immersed in the liquid in the tank.
  • the aeration [54] APPARATUS FOR SEWAGE TREATMENT rotor is suspended from a floating carrier frame including a platform supporting the driving motor for the aerator and a 6 Claims, 3 Drawing Figs.
  • the sup- R, 120 porting rods extend with their outer ends through rough spher- [51 I hit. Cl Bolf 7/16 ical floating bodies floating on the liquid to be treated in the [50] Fleld 0 Search 261/87, 93, tank
  • the free ends of the upporting rods projecting beyond 120,91; 239/16 23; 9/ 8; 210/ 242 said floating bodies are guided in vertical guide channels 56 R f CM formed on the internal tank wall to hold said carrier frame I l e I against rotation in said tank but permitting unrestrained up- UNITED STATES PATENTS wards and downward movement of the carrier frame accord- 3.235,877 2/1966 Grob 239/17 X ing to the level of the sewage in the tank.
  • APPARATUS FOR SEWAGETREATMENT CROSS REFERENCE TO RELATED APPLICATION type including a motor-driven aeration rotor mounted on a.
  • substantially vertical axis for partial immersion in the liquid to be aerated comprising a floating carrier frame for said rotor, said carrier frame including a platform supporting the driving motor above the level of the liquid to be aerated, and a plurality of supporting rods secured to said platform and extending in radial planes outwardly and downwardly inclined from said platform with their ends immersed in the liquid.
  • Each of said supporting rods has a floating body attached thereto, whereby said motor-supporting platform is maintained in floating condition at a constant height with respect to the level of the liquid to be aerated.
  • the object of the present invention is the provision of a aeration system which may be used with advantage in the treatment of sewage in aeration tanks in which the level of the liquid in the tank is subject to frequent variations, so that the use of a fixed position aeration system is inconvenient, since for efficient operation of the aeration system, the aeration rotor should always occupy a constant height with respect to the level of the liquid in the tank.
  • said floating bodies mounted on each of said supporting rods for holding the platform which carries the motor and the aeration rotor in floating condition above the liquid level are mounted for longitudinal displacement along said rods, means being provided for secur ing said floating bodies in longitudinally adjustable positions on said supporting rods for varying the depth of immersion of said aeration motor into the liquid.
  • FIG. 1 is a vertical section through an aerating tank for treatment of sewage, an aeration rotor being arranged to float in the liquid in the tank.
  • FIG. 2 is a plan view of the aerating tank and the floating system from which the aeration rotor is suspended.
  • FIG. 3 is a longitudinal section through one of the supporting posts of the floating system taken along the line Ill-Ill of FIG. 2, and drawn to a larger scale.
  • the represented sewage treatment plant comprises an aerating tank 30 for aeration of sewage in the tank by means of an aeration rotor 31 of known design suspended on a vertical shaft 32 which is driven by a driving unit 33 including an electric motor and a gear.
  • the driving unit is mounted on a triangular-shaped platform 34 provided with a central opening 35 (FIG. 3) for the passage of the driving shaft 32.
  • the platfonn 34 is provided with a downwardly extending circumferential flange 36.
  • Three supporting posts 37 are each secured to one of the flat corners of the triangular platform 34.
  • the upper end of each post is provided with an end flange 38 which is secured by means of screws 39 to the depending circumferential flange 36 of the platform.
  • Each of the three supporting posts 37 carries a spherical float 40.
  • the floats are pushed over the lower ends of the supporting posts and are fixed thereto so as to be longitudinally adjustable along the posts. It will be understood that by longitudinally displacing the floats along the posts, the height of the supporting platform 34 above the liquid level 41 can be adjusted and the rotor 31 can be immersed to the desired depth into the liquid in the tank.
  • the spherical floating body 40 is formed by an outer hollow sphere 41 preferably consisting of plastic material.
  • the sphere 41 has a calotte removed whereby a flat surface 42 is formed extending at right angles to the axis of the post 37, this flat surface being provided with a central circular opening 43.
  • a guide tube 44 is introduced into the sphere 41 through the opening 43 and extends diametrically through the sphere to project out through the guide tube 44 has been inserted in its position within the Y sphere, and the foam material has been produced by foaming a corresponding plastics mixture, preferably directly within the hollow sphere, the space outside of the wall 42 and between and above the radial arms 46 is filled out with a plastic thermosetting material, so that the finished floating body 40 forms a complete ball, with the guide tube 44 projecting out of the sphere.
  • the portion of the tube extending out of the sphere is formed with one or-more peripheral lugs 48 provided with athreaded hole for introducing a clamping screw 49.
  • One such floating body 40 is slid over each of the posts 37 the post passing through the guide tube 44, and then the floating body is fixed to post by means the clamping screws 49 introduced through the thread holes of the lugs 48.
  • the lower end of the tubular post 37 is closed by means of a cover 50 welded to the tube.
  • a tubular bend 53 having a flange 51 is secured to the cover 50 by means of screws 52.
  • a guide pin 54 is insertedinto the open end of the tubular bend 53 and held therein by means of a clamping screw 55.
  • the guide pin 54 is engaged in a vertical channel formed between two angle rails 56 secured to the wall of the tank'30.
  • the guide pin 54 is slidably inserted in the tubular bend 53.
  • the pin 54 can be moved into or out of the bend 53 so as to obtain a safe engagement of the pin between the two rails 56.
  • the aerating tank 30 can also be formed of glass fiber-reinforced synthetic resin material, so as to be of light weight, corrosion resistant and easily transportable.
  • the rotor 31 can move upwardly and downwardly without any constraint, according to the level of liquid in the tank, and that the depth of immersion of the rotor 31 into the liquid, after adjustment by positioning of the floating bodies 40 along the posts 37, remains constant.
  • the depth of immersion of the rotor 31 shall be modified, i.e. when the outlets 56 of the liquid guide channels in the rotor shall be situated slightly higher or lower with respect to the liquid level 57 in the tank according to the desired operating conditions, it is only necessary to loosen the clamping screws 49 by which the guide tubes 44 are secured to the posts 37, and to slightly displace the floating spheres 40 longitudinally of the posts in one or theother direction.
  • a displacement of the spheres upwardly and inwardly along-the posts 37 will result in a lowering of the platform 34 with respect to the liquid level 57 in the tank and a displacementof the spheres downwardly and outwardly along the posts'will result in a raising of the platform with respect to theliquidlevel.
  • a sewage aeration system including a rotatable aeration rotor mounted on a substantially vertical axis for partial immersion into the liquid to be aerated, a floating carrier frame for said rotator, a driving motor, said carrier frame including a platform supporting said driving motor, a driving shaft extending from said motor and connected to said aeration rotor, a plurality of supporting rods fixedly secured to said platform and extending outwardly and downwardly inclined from said platform, and a floating body mounted on each of said supporting rods for supporting'said platform in floating condition above the liquid level, the improvement comprising adjustable means securing said floating bodies for movement longitudinally along said supporting rods to vary the depth of immersion of said aeration rotor in the liquid upon which the system floats.
  • a sewage aeration system comprises a tank containing liquid to be aerated, a floating carrier frame, aerating means including a motor driven aeration rotor mounted on said frame for rotation about a substantially vertical axis with a portion of said rotor immersed in the liquid, said frame including a platform with a plurality of supporting rods fixedly secured to said platformand extending outwardly and downwardly therefrom, a float body slidably mounted on each of said rods for supporting said platform sufficiently above the liquid level to support said rotor partially immersed in the liquid, vertically extended guide means extending from the inner side of said tank, and guide pin means on the outer ends of said rods loosely engaging said guide means whereby said platform and the motor driven rotor supported thereon can move freely in a vertical direction within said tank in accordance with changes in the liquid level.
  • a water aeration system in which said supporting rods penetrate through said float bodies and the outer ends of the supporting rods emerging from the bodies carry a guide pin of adjustable length cooperating with said guide means on the inner wall of said tank.
  • said float body comprises a partly spherical external layer of plastic material, the portion of said spherical layer defined by said external layer and said diametrically extending guide tube being filled with foamed plastic.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Biological Treatment Of Waste Water (AREA)
US3595537D 1967-12-04 1968-11-25 Apparatus for sewage treatment Expired - Lifetime US3595537A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1699867A CH466161A (de) 1966-04-07 1967-12-04 Anlage zur Wasserbelüftung

Publications (1)

Publication Number Publication Date
US3595537A true US3595537A (en) 1971-07-27

Family

ID=4421974

Family Applications (1)

Application Number Title Priority Date Filing Date
US3595537D Expired - Lifetime US3595537A (en) 1967-12-04 1968-11-25 Apparatus for sewage treatment

Country Status (5)

Country Link
US (1) US3595537A (de)
BE (1) BE723132A (de)
DE (1) DE1759104C3 (de)
ES (1) ES360118A1 (de)
FR (1) FR1587218A (de)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3811662A (en) * 1971-09-06 1974-05-21 Kaelin J R Aeration device for the surface aeration of liquids
US4001077A (en) * 1976-02-27 1977-01-04 Orville Kemper Evaporation accelerator
US4514343A (en) * 1982-09-29 1985-04-30 Air-O-Lator Corporation Aspirating horizontal mixer
US4581181A (en) * 1982-02-19 1986-04-08 General Signal Corporation Floating platform aerator/mixer apparatus
US5114371A (en) * 1990-11-15 1992-05-19 California Aqua Paddle, Inc. Water paddle and flotation device for use by swimmers
US20050229861A1 (en) * 2004-04-19 2005-10-20 Reusche Thomas K Water agitation system for water retention structure
US20060054553A1 (en) * 2004-09-13 2006-03-16 Usfilter Corporation System and method for treating liquids
US20070013087A1 (en) * 2005-07-12 2007-01-18 Kuang-Chuan Lee Speed-increasing machine for water
US20070045194A1 (en) * 2005-08-30 2007-03-01 Allied Precision Industries, Inc. Water agitation system for water retention structure
US20080049547A1 (en) * 2003-04-10 2008-02-28 Reusche Thomas K Water agitation system for water retention structure
US20110050429A1 (en) * 2009-08-31 2011-03-03 Zoe Eggleston Ice safety device
US20110089105A1 (en) * 2008-03-28 2011-04-21 Siemens Water Technologies Corp. Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods
US20110132836A1 (en) * 2009-12-03 2011-06-09 Siemens Water Technologies Corp. Systems and methods for nutrient removal in biological treatment systems
US20110203992A1 (en) * 2008-03-28 2011-08-25 Siemens Water Technologies Corp. Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods
US8808544B2 (en) 2010-08-18 2014-08-19 Evoqua Water Technologies Llc Contact-stabilization/prime-float hybrid
US8894857B2 (en) 2008-03-28 2014-11-25 Evoqua Water Technologies Llc Methods and systems for treating wastewater
US9359236B2 (en) 2010-08-18 2016-06-07 Evoqua Water Technologies Llc Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle
US9421502B2 (en) * 2013-04-24 2016-08-23 Absolute Aeration Apparatus and method for enhanced wastewater treatment
US9731793B1 (en) * 2013-10-01 2017-08-15 Aqua-Aerobic Systems, Inc. Self-deploying float
US10131550B2 (en) 2013-05-06 2018-11-20 Evoqua Water Technologies Llc Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle
CN115536132A (zh) * 2022-11-28 2022-12-30 山东鲁净环保材料科技有限公司 一种净水剂催化反应系统和方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT378167B (de) * 1983-10-06 1985-06-25 Pumpenvertriebs & Service Gmbh Mischeinrichtungen und anordnung zu deren absenken

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3235877A (en) * 1962-11-08 1966-02-15 Grob Inc Aerating device
US3288295A (en) * 1962-12-07 1966-11-29 Eimco Corp Tank cover structure
US3395803A (en) * 1965-03-05 1968-08-06 Sumimoto Scient I Co Ltd Apparatus for filtration of liquids in container

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3235877A (en) * 1962-11-08 1966-02-15 Grob Inc Aerating device
US3288295A (en) * 1962-12-07 1966-11-29 Eimco Corp Tank cover structure
US3395803A (en) * 1965-03-05 1968-08-06 Sumimoto Scient I Co Ltd Apparatus for filtration of liquids in container

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3811662A (en) * 1971-09-06 1974-05-21 Kaelin J R Aeration device for the surface aeration of liquids
US4001077A (en) * 1976-02-27 1977-01-04 Orville Kemper Evaporation accelerator
US4581181A (en) * 1982-02-19 1986-04-08 General Signal Corporation Floating platform aerator/mixer apparatus
US4514343A (en) * 1982-09-29 1985-04-30 Air-O-Lator Corporation Aspirating horizontal mixer
US5114371A (en) * 1990-11-15 1992-05-19 California Aqua Paddle, Inc. Water paddle and flotation device for use by swimmers
US20080047497A1 (en) * 2003-04-10 2008-02-28 Reusche Thomas K Water agitation system for water retention structure
US20080049547A1 (en) * 2003-04-10 2008-02-28 Reusche Thomas K Water agitation system for water retention structure
US7178979B2 (en) * 2004-04-19 2007-02-20 Allied Precision Industries, Inc. Water agitation system for water retention structure
US20050229861A1 (en) * 2004-04-19 2005-10-20 Reusche Thomas K Water agitation system for water retention structure
US20070075019A1 (en) * 2004-09-13 2007-04-05 Siemens Water Technologies Holding Corp. System and method for treating liquids
US7309427B2 (en) * 2004-09-13 2007-12-18 Siemens Water Technologies Holding Corp. System for treating liquids
US7314564B2 (en) 2004-09-13 2008-01-01 Siemens Water Technologies Holding Corp. Method for treating liquids
US20060054553A1 (en) * 2004-09-13 2006-03-16 Usfilter Corporation System and method for treating liquids
US20070013087A1 (en) * 2005-07-12 2007-01-18 Kuang-Chuan Lee Speed-increasing machine for water
US7204476B2 (en) * 2005-07-12 2007-04-17 Kuang-Chuan Lee Speed-increasing machine for water
US20070045194A1 (en) * 2005-08-30 2007-03-01 Allied Precision Industries, Inc. Water agitation system for water retention structure
US7513680B2 (en) * 2005-08-30 2009-04-07 Allied Precision Industries, Inc. Magnetic agitation system for water retention structure
US20110089105A1 (en) * 2008-03-28 2011-04-21 Siemens Water Technologies Corp. Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods
US8894855B2 (en) 2008-03-28 2014-11-25 Evoqua Water Technologies Llc Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods
US9359239B2 (en) 2008-03-28 2016-06-07 Evoqua Water Technologies Llc Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods
US20110203992A1 (en) * 2008-03-28 2011-08-25 Siemens Water Technologies Corp. Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods
US8623213B2 (en) 2008-03-28 2014-01-07 Siemens Water Technologies Llc Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods
US9359238B2 (en) 2008-03-28 2016-06-07 Evoqua Water Technologies Llc Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods
US8894856B2 (en) 2008-03-28 2014-11-25 Evoqua Water Technologies Llc Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods
US8894857B2 (en) 2008-03-28 2014-11-25 Evoqua Water Technologies Llc Methods and systems for treating wastewater
US8299931B2 (en) * 2009-08-31 2012-10-30 Zoe Eggleston Ice safety device
US20110050429A1 (en) * 2009-08-31 2011-03-03 Zoe Eggleston Ice safety device
US8685247B2 (en) 2009-12-03 2014-04-01 Evoqua Water Technologies Llc Systems and methods for nutrient removal in biological treatment systems
US20110132836A1 (en) * 2009-12-03 2011-06-09 Siemens Water Technologies Corp. Systems and methods for nutrient removal in biological treatment systems
US8801931B2 (en) 2010-02-25 2014-08-12 Evoqua Water Technologies Llc Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods
US8808544B2 (en) 2010-08-18 2014-08-19 Evoqua Water Technologies Llc Contact-stabilization/prime-float hybrid
US9359236B2 (en) 2010-08-18 2016-06-07 Evoqua Water Technologies Llc Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle
US9783440B2 (en) 2010-08-18 2017-10-10 Evoqua Water Technologies Llc Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle
US9421502B2 (en) * 2013-04-24 2016-08-23 Absolute Aeration Apparatus and method for enhanced wastewater treatment
US10131550B2 (en) 2013-05-06 2018-11-20 Evoqua Water Technologies Llc Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle
US9731793B1 (en) * 2013-10-01 2017-08-15 Aqua-Aerobic Systems, Inc. Self-deploying float
US9902469B2 (en) * 2013-10-01 2018-02-27 Aqua-Aerobic Systems, Inc. Self-deploying float
US10351213B2 (en) * 2013-10-01 2019-07-16 Aqua-Aerobic Systems, Inc. Self-deploying float
CN115536132A (zh) * 2022-11-28 2022-12-30 山东鲁净环保材料科技有限公司 一种净水剂催化反应系统和方法

Also Published As

Publication number Publication date
DE1759104A1 (de) 1972-02-24
ES360118A1 (es) 1970-07-01
DE1759104B2 (de) 1973-06-28
FR1587218A (de) 1970-03-13
DE1759104C3 (de) 1974-01-24
BE723132A (de) 1969-04-01

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Legal Events

Date Code Title Description
AS Assignment

Owner name: LINDE AKTIENGESELLSCHAFT, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:UNION CARBIDE CORPORATION;REEL/FRAME:003831/0006

Effective date: 19810113

Owner name: LINDE AKTIENGESELLSCHAFT, A CORP. OF GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:UNION CARBIDE CORPORATION;REEL/FRAME:003831/0006

Effective date: 19810113